import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;

public class Demo94 {
    public static void main(String[] args) throws IOException {
        try(InputStream inputStream = new FileInputStream("./text.txt")){
            byte[] buffer = new byte[1024];
            int len =0;
            while(true ){
                len = inputStream.read(buffer);
                if(len==-1){
                    break;
                }
                for (int i = 0; i <len ; i+=3) {
                   String s = new String(buffer,i,3);
                    System.out.println(s );
                }
            }
        }
    }
}
